Detections
Analytics
RockyLinux 9 : microcode_ctl (RLSA-2026:97521)
medium Nessus Plugin ID 380175
Synopsis
The remote RockyLinux host is missing a security update.Description
The remote RockyLinux 9 host has a package installed that is affected by a vulnerability as referenced in the RLSA-2026:97521 advisory.* kernel: hypervisor: Intel Processors: Privilege escalation in Ring 0 via improper value handling (CVE-2025-35973)
Bug Fix(es) and Enhancement(s):
* [Rocky Linux 9] Update Intel CPU microcode to the latest version (JIRA:Rocky Linux-240771)
Tenable has extracted the preceding description block directly from the RockyLinux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the affected microcode_ctl package.See Also
Plugin Details
Severity: Medium
ID: 380175
File Name: rocky_linux_RLSA-2026-97521.nasl
Version: 1.1
Type: Local
Published: 11/13/2026
Updated: 11/13/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.8
Percentile: 57.82
CVSS v2
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 3.9
Vector: CVSS2#AV:L/AC:H/Au:M/C:C/I:C/A:N
CVSS Score Source: CVE-2025-35973
CVSS v3
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 4.5
Threat Score: 0.9
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N
Vulnerability Information
CPE: cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:microcode_ctl
Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 11/13/2026
Vulnerability Publication Date: 8/11/2026
Reference Information
CVE: CVE-2025-35973